Improvement in last-fasteners



M. E. BRIGGS.

Last-Fasteners.

Patented June 23,1874.

UNITED STATES PATENT Q-FFICE.

MORRILL E. BRIGGS, OF EAST WEYMOUTH, MASSACHUSETTS.

IMPROVEMENT IN LAST-FASTENERS.

Specification forming partof Letters Patent No. 152,210., dated June 23,1874; application filed May 31, 1873.

To all whom it may concern:

Be it known that I, MORRILL E. Bnrees, of East Weymouth, in the countyof Norfolk and State of Massachusetts, have invented certain new anduseful lmprovements in the Attachment of the Block to a Last; and Idohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit pertains to make and use it, reference being had to the accompanyingdrawing, which 1 forms a part of this specification.

My invention relates to improvements in the mode of securing the upperpart of lasts to the lower part thereof during the process'ofmanufacturing shoes, &c. 5 and consists in the employment of a slottedmetallic plate secured firmly on the upper side of the last proper, incombination with a screw having a conical head attached to the underside of the block, as will now be fully shown and described.

On the drawing, Figure 1 represents a ground plan of the last proper.Fig. 2 represents a central longitudinal section of the last and block,and Fig. 3 represents a crosssection of the last and block as taken atthe place shown at A B on Fig. 1.

Similar letters refer to similar parts wherever they occur on thedilferent parts of the drawing.

a represents the last proper, and b represents the block or upper partof the last. Formerly it was the usual custom to secure the block to thelast during-the process of manufacturing shoes, &c., by means of anordinary nail driven through the upper part of the block into the last;but as thereby the last was more or less injured by continued nailing, Ihave substituted a simpler and better mode of attaching the said blockto the last. The same consists in a slotted metallic plate, 0, securedto the last by means of screws or their equivalents, as shown. A screw,d, is screwed in the under side of the block b, and is made of adiameter a little less than the width of the slot in the plate 0, andhas ahead that is made tapering, as shown in Figs. 2 and 3. On the underside of the slotted plate 0 is made a recess, as shown at e on Fig. 1,for the head of the screw (1 to rest in when the block b is in itsproper place in relation to the last a. The block b can beinstantlysecured to the last a by guiding the head of the screw cl inthe slot in the plate 0 till the said screw rests in the countersink 2,when the last is ready for use. The block can as quickly be removed bysliding the screwd out from the said slotted plate 0 without injury tothe last or block.

What I wish to secure by Letters Patent, and claim, is

In combination with a last, a, and its block b, the slotted-spring plate0, with its recess 6, and the adjustable screw d, substantially as andfor the purpose set forth.

In testimony that I claim the foregoing I have hereunto set my hand this24th day of May, 1873.

MOItItlLL E. BRIGGS. Witnesses:

ALBAN ANDREN, J OHN R. HEARD.

